Drainage Basin A, main river in this system is the Limpopo River. It is subdivided into 9 sub-drainage basins.
A1 is situated along the Botswana border, and is again divided into 3 river basins
A10A covers the Ngotwane River up to and including the Ngotwane Dam
A10B covers the Notwane River up to the border with Botswana and it joins the Taung River in Botswana, just before it drains into the Gaborone Dam
A10C covers the Segakwane River before it crosses the border with Botswana.
A2 has the Marico River as main river system.
A21A covers the Hennops River and Rietvlei River up to and including the Rietvlei Dam
A3 has the Crocodile River as main river system and divided into 11 river basins. Situated off northwest Gauteng and Limpopo province.
A31A
A32A
A32B
A32C covers the Brakfonteinspruit until it drains into the Molatedi Dam, as well as a short section of the Raswue River, before it crosses the border with Botswana.
A4 has the Mokolo River as main river system. Includes the Matlabas River, a smaller tributary of the Limpopo.
A5 has the Lephalala River as main river system.
A6 has the Mogalakwena River as main river system.
A7 has the Sand River (Polokwane) as main river system.
A8 has the Nzhelele River as main river system. Includes the Nwanedi River
A9 has the Luvuvhu River as main river system.
